Man, I don't normally rage during single player, but 'Push back the NVA' on veteran is fucking IDIOTIC.
Totally unclear mission objectives that you don't bother to give the player, plus an endless horde of sharpshooting enemies that ignore your allies (and vice versa) and shitty fucking checkpoints that won't work if those endless enemies happen to be nearby.
FUCK YOU. That's to both the designer stupid enough to think this is challenging, not cheap, and the gameplay testers who didn't have the balls to throw a controller at the guy's head and quit.
CoD games have always been a TAD on the cheap side when on veteran, but livable. This is just idiotic though. I'm getting headshot by guys three-quarters of the way down the hillside, just dots on my 65" screen, because I moved a pixel out of cover...but you want me to rush down the hill into the next cover? How the fuck am I supposed to do that? I know, I'll kill them all...wait, you can't kill all of an endless horde.
The last 15 minutes of restarting (and hearing the same shit over and over) has really soured me on the Black Ops veteran experience.